Traditional data centers costing milions air conditioning. Why do not put them on the ocean floor? The crazy idea engineers who once worked as US sailors, seduced at Microsoft. The software giant has tested this project called Natick for 4 months. A server contenaire group is submerged at 10m depth of equivalent computing power of office 300PC. The device reveals economical and ecological. Sea water cooled machines out. Eventually, the waves could provide electricity in data centers, which would become autonomous. Microsoft indicated it can deploy in 3 months, 2 years against the construction of a traditional data center. The firm provides a second test next year.